Karson Hyder, a 22-year-old former Shelby County police officer, was charged with one count of assault inflicting serious injury after doorbell video showed him punching 34-year-old Cherrie Moore during an arrest on Friday. Hyder turned himself in on Monday, posted a $10,000 secured bond, and is scheduled for a first court appearance on Tuesday. The incident occurred while officers investigated a breaking-and-entering case and prompted community protests.